﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using System.Data;

namespace ConsoleApp1_Calculator
{
    class Program
    {
        static void Main(string[] args)
        {
            string s;
            DataTable dt = new DataTable();
            s = Console.ReadLine();
            var result = dt.Compute(s, " ");
            Console.Write(result);
            Console.ReadLine();
        }
    }
}
